that is, Duke Ellington, was born in Washington, D.C., on this date in 1899.
The PBS web site for JAZZ A Film By Ken Burns sums up Ellington succinctly.
Edward Kennedy “Duke” Ellington was the most prolific composer of the twentieth century in terms of both number of compositions and variety of forms. His development was one of the most spectacular in the history of music, underscored by more than fifty years of sustained achievement as an artist and an entertainer. He is considered by many to be America’s greatest composer, bandleader, and recording artist.
The extent of Ellington’s innovations helped to redefine the various forms in which he worked. He synthesized many of the elements of American music — the minstrel song, ragtime, Tin Pan Alley tunes, the blues, and American appropriations of the European music tradition — into a consistent style with which, though technically complex, has a directness and a simplicity of expression largely absent from the purported art music of the twentieth century. Ellington’s first great achievements came in the three-minute song form, and he later wrote music for all kinds of settings: the ballroom, the comedy stage, the nightclub, the movie house, the theater, the concert hall, and the cathedral. His blues writing resulted in new conceptions of form, harmony, and melody, and he became the master of the romantic ballad and created numerous works that featured the great soloists in his jazz orchestra.
The Red Hot Jazz Archive has a number of Ellington recordings on line [RealAudio files].